Benjamin haytock



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MECHANISM FOR (moss WEAVING. No. 457,117. Patented Aug. 4, 1891.

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MECHANISM FOR GROSS WEAVING.

Patented Aug. 4,, 1891.

UNITED STATES PATENT OFFICE.

BENJAMIN HAYTOCK, OF PATERSON, NEV JERSEY, ASSIGNOR TO HESS,

GOLDSMITH & (10., OF NE YORK, N. Y. Y

MECHANISM FOR CROSS-WEAVING.

SPECIFICATION forming part of Letters Patent No. 457.117, dated August4, 1891' Application filed September 6,1890. Serial No. 364.106. (Nomodel.)

To all whom it may concern.-

1 3e it known that I, BENJAMIN HAYTOCK, a citizen of the United States,and aresident of Paterson, in the county of Passaic and State of NewJersey, have invented certain new and useful Improvements in Mechanismfor CrossWVeaving, of which the following is a specification.

My present invention in looms has for its main object to relieve thewarp and cross threads as well as the harness of all undue strain ortension in doing that class of work known as cross-weaving, and which isperformed .in the manufacture of gauze, grenadine, &c.

To this end my invention consists in the features of construction andcombinations of devices hereinafter more fully described, andparticularly set forth in the appended claims.

In the accompanying drawings, Figure 1 is a plan view of so much of aloom as is necessary to illustrate my invention. Fig. 2 is across-section of the upper part of the loom, taken at the line was ofFig. 1 and partly broken away. Fig. 3 is a vertical longitudinal partialsection taken at the line y y of Fig. 1. Fig. at is a similar sectionwith some of the parts in difierent positions.

In the several views the same part will be found designated by the samenumerals and letters of reference.

1 is the main frame, 2 the warp-roller, 3

- the take-up roller, and 4 a guide-roller.

5 is a fixed cross-bar, on which is mounted at each end two brackets 6,which serve as the bearings for two cross rods or levers 7 and 8. Theserods are bent forwardly to provide arms 9 and 10 and laterally toprovide pivots or journals 11 and are preferably arranged as closelytogether as practicable. The arms 9 and 10 of each rod are the same inlength, so that each rod may have the same amount of motion. To onepivot of the rod 8 is attached a lever 12, which near its free end isattached by a cord 13 to a transverse lever 14, which in turn isconnected by acord 15 to the Jacquard or other pattern mechanism. To thepivot of the rod 7 is secured a lever 16, which near its free end isattached to a lever 17 by a cord 18, the lever 17 being connected to theJacquard or other like mechanism by means of a cord 19. The pivots ofthe levers 14 and 17 are respectively designated by the numerals 20 and21. The cords 13 and 18 pass through and are guided in perforations in across-beam 22, which also serves to support the levers 14c and 17.

30, 31, 32, and 33 are four heddles connected with the Jacquard orsimilar mechanism through which the warp-threads pass, and 23 and 24 aretwo additional heddles to perform the slinging or crossing of certain ofthe warp -threads, 25 and 26 being the slings of said heddles. Theslinging or crossing heddles are constructed and arranged to operate in.the customary manner,

and those skilled in the art will need no further description of thesame. The heddles 30 and 32 are lifting-heddles, while 31 and 33 arestationary or non-lifting heddles. The heddles 30 and 32 liftalternately, the heddle 30 lifting simultaneously with the sling heddle24C and heddle 32 lifting simultaneously with the sling-heddle 23.

The warp-threads are employed or arranged in groups or sets of three,one set a running from the warp-roller 2 over the guide roller 4, undera round rod 27, over a similar rod 28, and alternately through theheddles 31 and 33; the second set 19 running from the warp roller overthe cross-bar 7, over the rod 27, under the rod 28, through the heddle32, and through the sling 26; the third set 0 running from thewarp-roller over the cross-bar 8, over the rod 27 under the rod 28,through the heddle 30 and sling 25. The threads a are never lifted. Thethreads I) and c are lifted and slung or carried under the threads a toeffect the crossing. The threads Z) and c are arranged to slingalternately.

In order to relieve the tension or stress on the threads I) and c andthe harness 29, as well as the weft-threads previously woven, when thethreads I) and c are raised, or while the slinging is taking place, Iprovide the cross bars or levers 7 and 8. When the threads Z? are beingraised by the heddle 24. to sling, the lever 17 is lifted by the cord 19and lever 16 is elevated through the connection 18. The raising of thelever 16 effects the depression or lowering of the cross-rod 7, and thusreduces the tension of said threads for ICC their whole length andobviating the liability of breakage thereof and of the heddles, harness,&c. WVhen the threads 0 are being raised by the heddle 23 to sling, thelever 14: is raised by the cord 15 and the lever 12 is pulled up by thecord 13, which action causes a depression of the cross-rod S and aconsequent diminution of tension on the threads, the heddles, theharness, (to.

I have illustrated my invention to show two sets of sling-threads b andc, in which case there should be employed the two pivoted cross rods orlevers 7 and S; but it will of course be understood that my improvementis applicable to machines in which there is only one set ofsling-threads, and in such a machine it will be necessary to employ onlyone of the cross rods or levers 7 S.

The levers 12 and 8, it will be understood, may be said to be onecontinuous lever with the fulcrum at 6, and the same may be said of thelevers 16 and 7.

The levers 12 and 16 may be perforated at different points forattachment of their cords, so that the amount of lift of said levers maybe regulated in accordance with the desires of the weaver. These leversmay also be provided with springs 31 at suitable points to effect theirreturn to normal position after having been lifted.

\Vhat I claim as new, and desire to secure by Letters Patent, is

1. In a loom, the combination, with the warp-roller and the heddles, ofa transverse vibratorybar over Which the warp-threadsrun, alongitudinally-arranged lever connected to said bar, and a cross-leverconnected to the Jacquard mechanism and also to the saidlongitudinally-arranged lever, as set forth.

2. In a loom, the combination, with the warp-roller and the lifting andslinging heddles, of a transverse vibratory bar between the warp-rollerand the lifting-heddles over which the Warp-threads run, alongitudinallyarranged lever connected to said bar, a crossleverconnected to the Jacquard mechanism, and a vertical connection betweenthe longitudinal lever and the cross-lever, as set forth.

3. In a loom, the combination, with thewarp-roller and the lifting andslinging heddles, of two parallel transverse vibratory bars, twolongitudinally-arranged levers connected one to each of said bars, twocross-levers con- '11 ected to the Jacquard mechanism, and a ver-BENJAMIN HAYTOCK. Witnesses:

JACOB FELBEL, LOUIS GOLDSMITH.

